Adds segments of active users with paid and unpaid subscriptions

Segments are replacing old segments `active-subscription-without-payment` and `active-subscription-without-payment` (eventually copying their history).
The segments are now using `is_paid` attribute as a definitive source of truth whether subscription is paid or not.

remp/crm#1521

src/components/ActiveRegisteredUsersStatWidget/active_registered_users_stat_widget.latte

@@ -1,5 +1,5 @@
 {if !$wasCalculated}
-<i class="fas fa-exclamation-triangle" style="color: red;" data-toggle="tooltip" data-original-title="{_dashboard.total.active_registrations.warning}"></i>
+<i class="fas fa-exclamation-triangle" style="color: red;" data-toggle="tooltip" data-original-title="{_segment.dashboard.warning}"></i>
 {/if}
 <span class="badge">{$totalUsers}</span>
 <a n:tag-if="isset($totalPaidSubscribersLink)" href="{$totalPaidSubscribersLink}">